Unconfident, does this word even exist, I’m an English teacher and I don’t know.
I am doing some English teaching in Austria, in Vienna, right now to help make ends meet and I came across the word “unconfident”. At first I dismissed it out of hand, but then I weakened and googled it.
It seems the story is a little more complicated than I thought, see this link for example
In my opinion it is a word that has fallen out of fashion, and this tends to be a one-way street. A few brave souls seem to have taken on the task of resurrecting the word but I fear they are doomed to failure. This word is pretty much dead, and the signs don’t look good for “whom”.